题目内容
化简比.
4.2:0.7=
:
=
:
=
4.2:0.7=
| 2 |
| 3 |
| 4 |
| 9 |
| 15 |
| 2 |
| 5 |
| 3 |
(1)4.2:0.7=
=
=6:1;
(2)
:
=
×
=
=3:2;
(3)
:
=
×
=
=9:2.
| 4.2 |
| 0.7 |
| 42 |
| 7 |
(2)
| 2 |
| 3 |
| 4 |
| 9 |
| 2 |
| 3 |
| 9 |
| 4 |
| 3 |
| 2 |
(3)
| 15 |
| 2 |
| 5 |
| 3 |
| 15 |
| 2 |
| 3 |
| 5 |
| 9 |
| 2 |
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